1 /* 2 * Copyright (C) 2019 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.android.launcher3.util; 17 18 import android.content.Context; 19 20 import androidx.annotation.ColorRes; 21 import androidx.annotation.DimenRes; 22 import androidx.annotation.FractionRes; 23 import androidx.annotation.IntegerRes; 24 25 import com.android.launcher3.uioverrides.plugins.PluginManagerWrapper; 26 import com.android.systemui.plugins.PluginListener; 27 import com.android.systemui.plugins.ResourceProvider; 28 29 /** 30 * Utility class to support customizing resource values using plugins 31 * 32 * To load resources, call 33 * DynamicResource.provider(context).getInt(resId) or any other supported methods 34 * 35 * To allow customization for a particular resource, add them to dynamic_resources.xml 36 */ 37 public class DynamicResource implements ResourceProvider, PluginListener<ResourceProvider> { 38 39 private static final MainThreadInitializedObject<DynamicResource> INSTANCE = 40 new MainThreadInitializedObject<>(DynamicResource::new); 41 42 private final Context mContext; 43 private ResourceProvider mPlugin; 44 DynamicResource(Context context)45 private DynamicResource(Context context) { 46 mContext = context; 47 PluginManagerWrapper.INSTANCE.get(context).addPluginListener(this, 48 ResourceProvider.class, false /* allowedMultiple */); 49 } 50 51 @Override getInt(@ntegerRes int resId)52 public int getInt(@IntegerRes int resId) { 53 return mContext.getResources().getInteger(resId); 54 } 55 56 @Override getFraction(@ractionRes int resId)57 public float getFraction(@FractionRes int resId) { 58 return mContext.getResources().getFraction(resId, 1, 1); 59 } 60 61 @Override getDimension(@imenRes int resId)62 public float getDimension(@DimenRes int resId) { 63 return mContext.getResources().getDimension(resId); 64 } 65 66 @Override getColor(@olorRes int resId)67 public int getColor(@ColorRes int resId) { 68 return mContext.getResources().getColor(resId, null); 69 } 70 71 @Override getFloat(@imenRes int resId)72 public float getFloat(@DimenRes int resId) { 73 return mContext.getResources().getFloat(resId); 74 } 75 76 @Override onPluginConnected(ResourceProvider plugin, Context context)77 public void onPluginConnected(ResourceProvider plugin, Context context) { 78 mPlugin = plugin; 79 } 80 81 @Override onPluginDisconnected(ResourceProvider plugin)82 public void onPluginDisconnected(ResourceProvider plugin) { 83 mPlugin = null; 84 } 85 86 /** 87 * Returns the currently active or default provider 88 */ provider(Context context)89 public static ResourceProvider provider(Context context) { 90 DynamicResource dr = DynamicResource.INSTANCE.get(context); 91 ResourceProvider plugin = dr.mPlugin; 92 return plugin == null ? dr : plugin; 93 } 94 } 95